JPH0321190B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to therapeutic magnetic plasters. More particularly, the present invention relates to magnetic plasters for magnetic therapy for rheumatism, arthralgia, sciatica, lower back pain, and other diseases that can be effectively treated by the use of magnetic fields.

Conventionally, in magnetic therapy, in addition to using expensive equipment, it has been known to apply a simple therapeutic magnetic plaster consisting of ferrite wafer and adhesive bandage. Such therapeutic magnetic plasters have, for example, been registered as a West German utility model.
No. 7919808. A disadvantage of the known therapeutic magnetic plasters mentioned above is that they cannot be effective unless they are adhered in the correct position. Finding the correct bonding point is particularly difficult for a layman, but also for a physical therapist or doctor who is new to such therapy. The inventors have found that the success rate in the application of conventional therapeutic magnetic plasters is increased if the ferrite wafers are applied in their respective optimal locations.

One object of the present invention is to improve conventional magnetic therapy, thus increasing its success and simplifying the handling of the plasters used. Another aim of the invention is to develop new fields of application for magnetotherapy.

The above-mentioned problem has a magnetic flux density of about 50 to 2000 Gauss and is compatible with the skin and can be attached to the skin by itself having an adhesive layer or by another bandage that is compatible with the skin. , thickness 0.2
Consisting of ~5 mm flexible, permanently magnetized plastic sheet, the plastic sheet is
Consisting of a plurality of strip-like sections, each having magnetic poles facing each other in opposing portions in the thickness direction, magnetized alternately in positive and negative directions and arranged in parallel, the distance between the centers of adjacent strip-like sections is d. The solution is a medical magnetic plaster characterized in that the magnetic field is in the range of 4 to 10 mm.

The magnetic flux density of the magnetic plaster according to the invention is approximately
In the range of 50-2000 Gauss. Below 50 Gauss, the field strength is too low to achieve the desired medical effect. On the other hand, it is generally difficult to obtain magnetic field strengths exceeding 2000 Gauss.

The magnetized plastic sheet used in the present invention will be described with reference to FIGS. 1 and 2. As shown in FIG. 1, in the plastic sheet 1, a plurality of strip-shaped sections 2 magnetized to positive N and a plurality of strip-shaped sections 3 magnetized to negative S are arranged in parallel. A non-magnetized region 4 can exist between the strip section 2 magnetized with a positive N and the strip section 3 magnetized with a negative S. The cross-sectional structure of the above plastic sheet is
As shown in the figure. Strip-shaped section 2 magnetized to positive N
Each of the strip-shaped sections 3 magnetized to negative S has mutually opposing magnetic poles in opposing portions in the thickness direction. From magnetized plastic sheets,
The magnetic lines of force 5 are radiated and can provide medical effects. The distance d between the centers of adjacent strip sections 2 and 3 is in the range 4 to 10 mm. When it is less than 4 mm, the penetration depth of the magnetism into the skin is insufficient, and when it exceeds 10 mm, the magnetism penetrates deep into the skin, but the magnetic field strength decreases and sufficient medical effects cannot be achieved. This becomes difficult. Center-to-center distance according to the invention means the distance between longitudinal center lines drawn on adjacent strip sections.

The thickness of the plastic sheet used in the present invention is selected taking into account the properties of the sheet to be magnetized, and is in the range of 0.2 to 5 mm. When the sheet thickness is less than 0.2 mm, the magnetic field strength is insufficient, and when the sheet thickness exceeds 5 mm, the sheet becomes highly rigid and heavy, which is not preferable. The preferred range of sheet thickness is:
For veterinary purposes it is 0.2-3mm, but for humans it is
It is 0.5 to 2 mm.

In areas of the human body where sweating is active,
For the purpose of evaporating moisture, the plaster according to the invention can be provided with holes or slits.
For example, circular holes having a diameter of about 1 to 3 mm are preferably spaced apart from each other by a center-to-center distance of about 3 to 40 mm. Also, the slits having a length of about 8 to 40 mm, preferably about 15 to 35 mm, are arranged at a center distance of about 8 mm from each other.
They can be arranged in a zigzag pattern with a spacing of ~40 mm, preferably about 10-15 mm.

The shape of the magnetic plaster according to the invention is not critical, but round, oval, square or rectangular shapes are preferred. It is recommended that the four corners of the square or rectangle be rounded to avoid irritation to the skin. The dimensions of the magnetic plaster according to the present invention are not particularly limited, but include the diameter of the circle, the major and minor axes of the rectangle, the sides of the square, and the length and width of the rectangle.
A suitable range is 1000 mm to 1000 mm, preferably 5 to 250 mm. Plasters smaller than 5 mm have few advantages over conventional therapeutic magnetic plasters with ferrite wafers.
If it exceeds 1000 mm, it will be difficult to attach it to the affected area.
A preferred embodiment of the magnetic plaster according to the invention includes, for example, a magnetic plaster of rectangular shape with rounded corners and dimensions of 60×100 mm.
The magnetic plaster according to the invention can also be applied in relatively large pieces over the affected area for a limited period of time. For this purpose, often
The magnetic plaster according to the invention may be subjected to heat. This is because external heating may increase heat generation due to the magnetic field and improve the therapeutic effect.

Flexible, permanently magnetizable or magnetized skin-compatible plastic sheets for use in the magnetic plaster of the invention include, for example:
Contains magnetizable particles such as ferrite and chromium dioxide particles. An inert plastic sheet that is sufficiently flexible is used. Preferred examples of sufficiently flexible and inert plastic sheets include elastomeric plastic sheets formed from natural or synthetic rubber or silicone rubber.

In the medical magnetic plaster of the present invention, as described above, there is a non-magnetized region 4 between the strip-shaped section 2 magnetized to positive N and the strip-shaped section 3 magnetized to negative S, which are arranged in parallel. can exist. This non-magnetized region 4 originates from the manufacturing process as described below. In the present invention, as long as the magnetic flux density is about 50 to 2000 Gauss and the distance d between the centers of adjacent strip sections 2 and 3 is in the range of 4 to 10 mm, the above-mentioned non-magnetized region 4 is Does not affect the medical effect of magnetic plaster.

The method for producing magnetic plaster by magnetizing a plastic sheet containing particles of ferrite, chromium dioxide, etc. is not limited, and can be carried out using any known method. A specific example of the magnetization method will be explained with reference to FIG. 4. As shown in FIG. 4, a pulsed electromagnetic current of the order of 10,000 A is generated at intervals of several milliseconds by a pulsed current generator 7, and the pulsed electromagnetic current is passed through a conductor 8 made of a twisted copper wire or the like arranged on a plastic sheet 1. let Since the current direction changes, an alternating magnetic field of 10,000 Gauss or more than 1 T is generated. This alternating magnetic field causes a permanent magnetization of the tiny, plastic-bonded particles embedded within the plastic sheet 1,
It is possible to obtain a magnetized plastic sheet in which strip-shaped sections 2 magnetized to positive N and strip-shaped sections 3 magnetized to negative S are arranged in parallel, as shown in FIGS. 1 and 2 above. The width of the non-magnetized region 4 corresponds to the diameter of the conductor 2.

A particular advantage of the alternating arrangement of the positively N-magnetized strip sections 2 and the negatively magnetized strip sections 3 is that not only a larger area of the human body is subjected to the therapeutic magnetic action; The most suitable magnetic pole for each treatment can be placed near the most suitable location. In other words, we found that certain diseases react more strongly to positive electrodes, while other diseases react more strongly to negative electrodes. In treatment with the magnetic plaster of the invention, which has two types of magnetic poles on its surface, it is possible to utilize both magnetic poles, thereby increasing the therapeutic possibilities. In addition, the magnetic field of such magnetic plasters penetrates deeper into the tissue since it is a crossed field.

As the plastic sheet used in the medical magnetic plaster of the present invention, for example, a commercially available rubber sheet used as an adhesive template for labeling or painting automobiles can be used. thickness
Sheets of 0.5, 0.9, 1 and 1.5 mm are commercially available.

When adhering the plastic sheet to the skin, it is possible to apply an adhesive that is compatible with the skin to one side of the sheet, or to adhere the sheet to the skin using the adhesive force of a bandage that is compatible with the skin. Adhesives compatible with the skin may be of the known types, for example those used in the manufacture of conventional plasters. In the magnetic plaster according to the invention, if the magnetic sheet itself has an adhesive layer, the sheet will reliably adhere to the skin.

However, when applying the sheet to an area of the human body that is subject to severe sweating, even if the sheet has holes or slits, it may be difficult to adhere to the affected area. In such cases, or if the magnetic sheet used is particularly sensitive to the solvent used to apply the skin-compatible adhesive, the sheet may not be coated with adhesive and instead, As shown in FIG. 2, the magnetic sheet 1 can be attached to the affected area using another bandage 6 using its adhesive layer. Basically, it is sufficient that a part of the bandage 6 adheres to the magnetic sheet 1 and another part adheres to the skin. Since the magnetic sheet 1 is usually black, it is convenient to cover the entire magnetic sheet 1 with a bandage 6 and use the adhesive strength of the strip-like protruding portion of the bandage 6 to attach the sheet 1 to the skin. Adhesion of the magnetic plaster according to the present invention makes it easy to make the bandage 6 skin-colored, so that it is visually unnoticeable, especially when the black sheet is visible through thin clothing. In the adhesive magnetic plaster according to the invention, it is preferred to cover the adhesive layer with siliconized paper. The aforementioned siliconized paper layer can be removed and treated before applying the plaster to the affected area.

It is basically possible to apply a flesh-colored elastic fiber layer to the back side of an adhesive magnetic plaster to make the plaster more visually discreet. It is also possible to cover the surface of the magnetic sheet that does not come into contact with the skin with a metal layer or dye it in a bright color. Metallic coatings are also more reflective and therefore more effective.

Treatment with magnetic plasters according to the invention results in a perceivable and measurable increase in skin temperature by the patient, which can significantly reduce pain and disease, especially those that extend to the surface of the body, in just a few days. Lead to recovery. Patients who were treated with conventional therapeutic magnetic plasters using ferrite wafers were either not treated at all or were treated very rarely, but they were treated with only a few magnetic plasters according to the present invention. After applying the patch for several days, the symptoms were alleviated, and some patients were even treated.

The skin temperature of healthy bodies is also measured, and the magnetic plaster according to the invention is combined with ingredients that stimulate blood circulation, such as Extractum et al.
A conventional plaster containing a component based on Fructus capsici was applied, and the changes in skin temperature caused by the effects of each plaster were comparatively analyzed. The results showed that with the magnetic plaster according to the invention there was no measurable increase in skin temperature, whereas with the conventional magnetic plaster containing plant extracts that stimulate blood circulation. A temperature increase of 3°C was observed on the skin surface to which the plaster was applied, and a temperature increase of 1 to 2°C was observed at a site up to 10 cm away from the plaster.
As described above, the increase in skin temperature of a healthy body felt by applying the therapeutic plaster of the present invention is subjective and is based on changes in the metabolic status of body cells and surrounding related tissues. In contrast, the use of conventional plasters with active ingredients increases the blood circulation of the skin, leading to a certain kind of artificial inflammation.

The two principles mentioned above regarding the operation of plaster are completely different. It is therefore basically possible to combine these two principles. Therefore, in a preferred embodiment of the magnetic plaster according to the invention, substances stimulating blood circulation are added to the adhesive layer. Any substance that is known and has proven therapeutic effects may be used as a substance that stimulates blood circulation. Particularly preferred are substances from mustard, paprika or hot pepper that stimulate blood circulation. Approximately 0.05-5% by weight
Preferably a mixture of 0.1 to 3% by weight of Capsicum extract (Extractum et Fructus Capsici)
It has proven effective in conventional plasters and it is therefore basically suitable to incorporate it into the adhesive layer of the magnetic plaster according to the invention in the same amounts as mentioned above.

The magnetic plaster of the invention loaded with substances that stimulate blood circulation exhibits two aspects in its action. Its application therefore produces a faster and better effect.

A medical magnetic plaster containing no substance that stimulates blood circulation was applied to cold tissue with poor blood circulation, and the skin temperature was measured. It has been found that even the absence of this method produces a measurable increase in skin temperature.

Embodiments of the magnetic plaster according to the invention will be explained in more detail with reference to the following examples, but the scope of the invention is not limited to the examples.

Example 1 Magnetic rubber sheet [manufactured by Serimag GmbH, 71 Schütsela, Zurich, Lieutenbach, Switzerland; length 125 mm, width
100 mm, thickness 0.5 mm; as shown in Figs. 1 and 2, strip section 2 magnetized to positive N and negative S
The strip-like sections 3 magnetized are arranged in parallel, the distance d between the centers of the adjacent strip-like sections 2 and 3 is 5 mm; It was used as shown in the figure and applied to the affected area exhibiting severe rheumatic symptoms. After a short period of time, the patient felt that the skin temperature in the affected area increased significantly and the blood circulation improved. The plaster was removed after 2-5 days. Some patients experienced only significant pain relief, while others experienced complete pain relief. For patients who only experienced pain relief,
When the treatment was repeated one to two months later, the pain was further reduced.

Example 2 In the magnetic sheet used in Example 1, circular holes having a diameter of 2 mm were arranged (i.e., perforated) with a center-to-center distance of 10 mm, and a flesh-colored bandage that matched the skin was applied. It was applied to the affected area in the same manner as in Example 1. The skin to which the perforated plaster was applied was subsequently less susceptible to perspiration, while the effectiveness of the treatment was not impaired by the perforation of the plaster.

Example 3 In the magnetic sheet used in Example 1, slits each having a length of 35 mm were arranged in a zigzag pattern with a center-to-center distance of 10 mm. One side of the resulting magnetic sheet was coated with a skin-compatible adhesive and covered with siliconized paper. The slits increased the elasticity of the plaster and at the same time facilitated the evaporation of water from the skin. Regarding the therapeutic outcome, the same results as those obtained in Example 1 were obtained.

Example 4 In the magnetic sheet used in Example 1, slits each having a length of 15 mm were arranged in a zigzag pattern with a center-to-center distance of 15 mm. One side of the obtained magnetic sheet was coated with chili pepper extract (Extractum et al.
A skin-compatible adhesive containing 3% by weight of Fructus Capsici was applied. Furthermore, the adhesive layer was covered with siliconized paper. The siliconized paper could be easily removed prior to treatment and no problems were encountered in applying the plaster where needed. The slits increased the elasticity of the plaster and at the same time facilitated the evaporation of water from the skin. Due to the addition of substances that stimulate blood circulation, an increase in temperature at the site where the plaster was applied was noticed both by the patient and by measurement. This temperature increase makes the treatment more effective and faster.

Examples 5-8 Examples 1-4 were repeated using medical magnetic plasters (manufactured by Yamauchi Gomu Co., Ltd., Osaka) that were specially manufactured according to the therapeutic purpose. Each sheet had a thickness of 1 mm, and two types were used: one in which the distance between the centers of the strip-shaped section magnetized to positive N and the strip-shaped section magnetized to negative S was 4 mm and 8 mm.
The magnetic flux density was approximately 600 Gauss (0.06T). Regarding the therapeutic results, the results that were obtained in Examples 1 to 4 were obtained.

Example 9 A thin golden reflective film was attached to the back side of the sheet used in Examples 5 to 8 to create a plaster. The resulting plaster had excellent optical effects. This plaster was further cut to a width of 22 mm.
mm and a length of 1000 mm, and this was rolled up. If necessary, cut into pieces of appropriate size.
I attached it to the affected area. Excellent therapeutic effects were obtained.

[Brief explanation of drawings]

FIG. 1 is an illustration of a magnetized plastic sheet consisting of a plurality of strip-shaped sections arranged in parallel and magnetized alternately positively and negatively. FIG. 2 is an explanatory diagram illustrating a partial cross-sectional structure of the magnetized plastic sheet shown in FIG. 1. FIG. 3 shows an embodiment of the magnetic plaster of the invention in which the magnetized plastic sheet shown in FIG. 1 is completely covered with a bandage. FIG. 4 is an explanatory diagram showing a method of magnetizing a plastic sheet. 1: Magnetized plastic sheet, 2: Strip-like section magnetized to positive N, 3: Strip-like section magnetized to negative S, d: Distance between centers of adjacent strip-like sections, 4: Non-magnetized area, 5 : magnetic field lines,
6: Bandage, 7: Pulse current generator, 8: Conductor,
+, N: positive electrode, -, S: negative electrode.

Claims (1)

[Scope of Claims] 1. Having a magnetic flux density of about 50 to 2000 Gauss, being compatible with the skin and having an adhesive layer itself, or being attached to the skin by another bandage that is compatible with the skin. consisting of a flexible, permanently magnetized plastic sheet with a thickness of 0.2 to 5 mm, each having mutually opposing magnetic poles in opposite portions of its thickness, alternating between positive and negative polarities. 1. A medical magnetic plaster comprising a plurality of magnetized and parallel strip-shaped sections, characterized in that the distance d between the centers of adjacent strip-shaped sections is in the range of 4 to 10 mm. 2. Medical magnetic plaster according to claim 1, which has a thickness of 0.5 to 2 mm. 3. Medical magnetic plaster according to claim 1, characterized in that the adhesive layer further contains a substance that stimulates blood circulation. 4. The magnetic plaster according to claim 3, wherein the substance that stimulates blood circulation is extracted from mustard, paprika, or chili pepper, and is present in the adhesive layer in an amount of 0.05 to 5% by weight. . 5. The magnetic plaster according to any one of claims 1 to 4, characterized in that it has holes or slits. 6. Claim No. 6, which has a circular, oval, square, or rectangular shape, and each diameter, major axis, minor axis, side, and length and width are in the range of 5 to 1000 mm. Magnetic plaster according to any one of items 1 to 5. 7. The magnetic plaster according to any one of claims 1 to 6, wherein the plastic sheet is made of a material having rubber elasticity.